CN102863080B - Bi-circulating multistage anaerobic reaction device - Google Patents
Bi-circulating multistage anaerobic reaction device Download PDFInfo
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- CN102863080B CN102863080B CN201210400894.4A CN201210400894A CN102863080B CN 102863080 B CN102863080 B CN 102863080B CN 201210400894 A CN201210400894 A CN 201210400894A CN 102863080 B CN102863080 B CN 102863080B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention discloses a bi-circulating multistage anaerobic reaction device which comprises two anaerobic reactors. The anaerobic reactors comprise containers (15), and water distributors (2), a water feed tube (1), first-stage three-phase separators (3), second-stage three-phase separators (6), a water discharge tube (11) and rotational gas liquid separators (10) are arranged in the containers (15) successively from bottom to top. Methane outlet tubes (8) leading to the outside is arranged at the tops of the rotational gas liquid separators (10), fluidized bed reaction chambers (14) are arranged between the water distributors (2) and the first-stage three-phase separators (3), and deep purification reaction chambers (14) are arranged between the first-stage three-phase separators (3) and the second-stage three-phase separators (6). The bi-circulating multistage anaerobic reaction device has both internal circulation and external circulation, has the advantages of being power saving, small in sludge amount and high in treatment volume loading rate, saving occupied areas, being high in impact load resistance and the like, and is applicable to high-concentration and low-concentration organic industrial wastewater.
Description
Technical field
The invention belongs to sewage disposal device, especially a kind of pair of cycle multistage anaerobic reaction device.
Background technology
High concentrated organic wastewater is more unmanageable one large industrial pollution source, and COD concentration is high.Conventional high-concentration organic wastewater treatment device comprises UASB anaerobic reactor, anaerobic biofilter etc., all has the problems such as investment is large, and working cost is high, poor processing effect, and this technical bottleneck has restricted applying of traditional wastewater processing technology.
Below the open source literature about anaerobic reaction device that we find:
1. application number: 02282323.9, utility model title: internal circulating anaerobic is expanded bed/fluidized-bed reactor, this reactor technical characteristics is that gas-liquid separation zone and second reaction zone are built jointly, top part conduct is gas-liquid separation zone, triphase separator is not established in second reaction zone, adopts the larger annular Jiang Liu district of area.This patent reactor still can form internal recycle, but structure greatly simplifies, and blockage problem is effectively alleviated, and the introducing of carrier has solved the lower problem of upflow velocity.But the weak point of this patent is: carrier current consumption energy consumption is large, and the design requirements of system is high.
2. application number: 200610122737.6, denomination of invention: diphase integrated multi-gradation internal circulation anaerobic bioreactor, this reactor is provided with multilayer internal recycle technique device, make fluid in good fluidized state, its treatment effect is compared with traditional anaerobic reactor, and advantage is: floor space is little; High Load Rate, anti-shock loading is strong, and processing efficiency is high, and operation treatment effect is stable etc.; But the weak point of this patent is: lack outer circulation, for the waste water of highly difficult low pH value, need to regulate pH value, working cost is high.
3. application number: 200820217707.8, utility model title: anaerobic composite fluidize bed, by ejector nozzle, jet pipe, water distributor, water circulating pump, heating mixer, circulating water intake, triphase separator, anaerobic reaction body, anaerobic reactor top, formed, in anaerobic reaction body, be provided with packing layer, packing layer arrange height between water distributor and circulating water intake, filler is polyvinyl silk combined stuffing.This utility model had both retained the advantage to common anaerobic mud bed analog value by anaerobic fluidized bed Energy Intensity Reduction of original device, had improved again anaerobic fluidized bed biologicak efficiency.But the weak point of this patent is: lack outer circulation, for the waste water of highly difficult low pH value, need to regulate pH value, working cost is high.
4. application number 201120189497.8, utility model title: IC anaerobic reactor, is once equipped with water distributor, water inlet pipe from bottom to top, one-level triphase separator, secondary triphase separator, water outlet, cyclone gas-liquid separator in this reactor shell; This utility model will be integrated in two triphase separator ships, reactor is divided into fluidized-bed reaction chamber and deep purifying reaction chamber, realize internal recycle and there is the advantages such as water distribution is even, volumetric loading is high, strong shock resistance, and outlet effect is good, initial cost is economized, floor space is few.But the weak point of this patent is: the toggle speed of device is slow, and processing efficiency is not high, lacks outer circulation, for the waste water of highly difficult low pH value, need to regulate pH value, and working cost is high.
Summary of the invention
The object of the invention is in order to overcome the deficiencies in the prior art, a kind of pair of cycle multistage anaerobic reaction device is provided, this device is comprised of two-stage anaerobic reactor, existing internal recycle has again outer circulation, the advantage such as have economize on electricity, sludge quantity is few, processing volume rate of load condensate is high, save to take up an area, anti-impact load property is strong, is suitable for high density and lower concentration organic industrial sewage.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
A kind of pair of cycle multistage anaerobic reaction device, comprise two anaerobic reactors, described anaerobic reactor comprises container body, described in it, in container body, be provided with successively water distributor from bottom to top, the water inlet pipe that leads to water distributor, one-level triphase separator, secondary triphase separator, rising pipe and cyclone gas-liquid separator, cyclone gas-liquid separator top is provided with and leads to outside methane outlet pipe, between water distributor and one-level triphase separator, be provided with fluidized-bed reaction chamber, between one-level triphase separator and secondary triphase separator, be provided with deep purifying reaction chamber, on described one-level triphase separator, cover and be provided with the upcast communicating with cyclone gas-liquid separator, on described secondary triphase separator, cover and be provided with the effuser that leads to cyclone gas-liquid separator, described container body center is provided with the downtake that spin current gas-liquid separator leads to water distributor, and the granule sludge that distributing also suspends in described container body.
Between the above two anaerobic reactor, be provided with return line, coagulator and pump, the rising pipe of return line water-in and one-level anaerobic reactor joins, return line water outlet and coagulator entrance join, coagulator is provided with two outlets, one of them outlet is joined with the water inlet pipe of secondary anaerobic reactor, and another outlet is joined by the water inlet pipe of pump and one-level anaerobic reactor.
As further improvement, the above water distributor cloth water surface is for revolving shape.
As further restriction, the above one-level triphase separator is with secondary triphase separator by the parallel composition of two row flaps, and every row is provided with 3 ~ 20 blocks of flaps.
As further restriction, the top of the above cyclone gas-liquid separator and bottom are all made as taper, and its conical surface and plane are 45 ° ~ 60 ° angles.
As further restriction, the caliber of the above upcast, downtake and effuser is 20 ~ 800mm.
As further restriction, the above granule sludge is the ellipse of the spherical of diameter 0.5 ~ 3.0mm or major diameter 0.5 ~ 3.0mm.
Principle of work of the present invention is:
Waste water is after pre-treatment, by one-level anaerobic reactor bottom water inlet pipe, enter fluidized-bed reaction chamber, evenly mix and carry out COD biochemical degradation with anaerobic grain sludge, COD volumetric loading is herein very high, most of influent COD is degraded herein, produce a large amount of biogas, the biogas producing is collected by one-level triphase separator, the effect that has produced air lift due to the work of expansion of in biogas Bubble Formation Process, liquid being done, make biogas, the mixture of mud and water rises to the cyclone gas-liquid separator of reactor head along upcast, biogas is in this place and mud-water separation and discharge collection from the methane outlet pipe at cyclone gas-liquid separator top, muddy water mixed solution turns back to the bottom of fluidized-bed reaction chamber along downtake, fully mix with granule sludge and water inlet, realizes the internal recycle of mixed solution.According to the not isostructure of different inlet COD loading and reactor, internal recycle flow can reach 5 ~ 20 times of flooding velocity; Granule sludge in reaction chamber reaches fluidisation completely, has very high rate of mass transfer, makes the first reaction chamber have very large removal organism ability.Waste water after process fluidized-bed reaction chamber is except a part participates in internal recycle, all the other waste water are by after one-level triphase separator, and penetration depth purification chamber is carried out rest COD degraded and produced process of methane, are precision processing district herein, waste water is better purified, improved effluent quality; Because most COD is degraded, so COD load is lower, gas production rate is also less, and the biogas that this place produces is collected by secondary triphase separator, by effuser, enter cyclone gas-liquid separator, and discharge and collect from the methane outlet pipe at cyclone gas-liquid separator top; Waste water after precision processing district processes is after the effect of secondary triphase separator, and supernatant liquor is drained through rising pipe, and granule sludge returns to precision processing district Sludge Bed.
Supernatant liquor enters coagulator through return line, and by coagulator, part supernatant liquor returns one-level anaerobic reactor by pump pump circulation, is mixed into fluidized-bed reaction chamber proceeds COD biological degradation with water inlet mud; Another part enters next stage anaerobic reactor and proceeds identical degradation treatment, finally by the water of crossing after purifying, from the rising pipe of secondary anaerobic reactor, discharges.
Compared with prior art, the invention has the beneficial effects as follows:
1. without aeration, save electricity consumption;
2. can produce the valuable energy-biogas; Waste water water enters fluidized-bed reaction chamber, mixes with anaerobic grain sludge, and most of organism has been converted to biogas here.
3. produce sludge quantity few, granule sludge is valuable inoculation product simultaneously;
4. because synthetic neonatal cell is few, required nitrogen, the phosphorus nutrition salt of synthetic cell also lacks;
5. pollution concentration be can bear high, high density and lower concentration organic industrial sewage are suitable for;
6. processing volume rate of load condensate is high, thereby save, takes up an area; Effect due to internal recycle of the present invention, make fluidized-bed reaction chamber not only have very high biomass, very long mud age, and there is very large up-flow speed, make this indoor granule sludge reach expansion, fluidized state completely, have very high rate of mass transfer, muddy water is fully mixed, thereby improved widely biochemical reaction rate and removed organism ability, volumetric loading can reach 15 ~ 45kgCOD/m
3d, breathing space current lift velocity can reach 4 ~ 15m/h.
7. anti-impact load property is strong.Two-stage triphase separator of the present invention is effectively detained biomass.The separated natural pond of primary separator (bottom) G&W, second-stage separator (top) separating particles mud and water, because most of biogas has obtained separation in primary separator, there is hardly turbulent fluctuation in deep purifying reaction chamber, therefore second-stage separator can not be subject to the impact of high gas flow rate, granule sludge in separated water outlet effectively, outlet effect is good.
8. primary starting speed is fast.The present invention arranges coagulator and pump between two-stage anaerobic reactor, at the reactor start-up initial stage, introduces and forces outer circulation, in granule sludge circulation, has again waste water circulation, has accelerated toggle speed; And bicirculating setting makes this reactor impact resistance stronger, and working cost is low.
9. water distribution is even, sufficient reacting.Water distributor of the present invention is designed to revolve shape, and water distribution is more even than IC anaerobic reactor, reacts more abundant.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two cycle multistage anaerobic reaction devices of the present invention;
Fig. 2 is water distributor structure schematic diagram of the present invention.
Reference numeral:
1-water inlet pipe, 2-water distributor, 3-one-level triphase separator, 4-deep purifying reaction chamber, 5-downtake, 6-secondary triphase separator, 7-effuser, 8-methane outlet pipe, 9-return line, 10-cyclone gas-liquid separator, 11-rising pipe, 12-upcast, 13-granule sludge, 14-fluidized-bed reaction chamber, 15-container body, 16-coagulator, 17-pump, 18-flap.
specific embodiment party
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to the scope that embodiment represents.
Embodiment 1:
As shown in Figure 1, a kind of pair of cycle multistage anaerobic reaction device, comprise two-stage anaerobic reactor, anaerobic reactor comprises container body 15, in container body 15, be provided with successively water distributor 2 from bottom to top, the water inlet pipe 1 that leads to water distributor 2, one-level triphase separator 3, secondary triphase separator 6, rising pipe 11 and cyclone gas-liquid separator 10, cyclone gas-liquid separator 10 tops are provided with and lead to outside methane outlet pipe 8, between water distributor 2 and one-level triphase separator 3, be provided with fluidized-bed reaction chamber 14, between one-level triphase separator 3 and secondary triphase separator 6, be provided with deep purifying reaction chamber 4, on one-level triphase separator 3, cover and be provided with the upcast 12 communicating with cyclone gas-liquid separator 10, on secondary triphase separator 6, cover and be provided with the effuser 7 that leads to cyclone gas-liquid separator 10, container body 15 centers are provided with the downtake 5 that spin current gas-liquid separator 10 leads to water distributor 2, the granule sludge 13 that distributing that also suspends in container body 15, and granule sludge 13 is the spherical of diameter 0.5 ~ 3.0mm.Between two anaerobic reactors, be provided with return line 9, coagulator 16 and pump 17, the rising pipe 11 of return line 9 water-ins and one-level anaerobic reactor joins, return line 9 water outlets and coagulator 16 entrances join, coagulator 16 is provided with two outlets, one of them outlet is joined with the water inlet pipe 1 of secondary anaerobic reactor, and another outlet is joined by pump 17 and the water inlet pipe 1 of one-level anaerobic reactor.Wherein, the water distributor 2 cloth waters surface are for revolving shape, one-level triphase separator 3 with secondary triphase separator 6 by the parallel composition of two row flaps 18, every row is provided with 3 blocks of flaps 18, the top of cyclone gas-liquid separator and bottom are all made as taper, its conical surface and plane are 45 ° of angles, and the caliber of upcast 12, downtake 5 and effuser 7 is 600mm.
Embodiment 2:
The difference of the present embodiment and embodiment 1 is: granule sludge 13 is the ellipse of major diameter 0.5 ~ 3.0mm; One-level triphase separator 3 with secondary triphase separator 6 by the parallel composition of two row flaps 18, every row is provided with 10 blocks of flaps 18, the top of cyclone gas-liquid separator and bottom are all made as taper, and its conical surface and plane are 60 ° of angles, and the caliber of upcast 12, downtake 5 and effuser 7 is 350 mm.
Embodiment 3:
The difference of the present embodiment and embodiment 1 is: the ellipse of spherical and major diameter 1.5 ~ 3.0mm that granule sludge 13 is diameter 0.5 ~ 2.0mm; One-level triphase separator 3 with secondary triphase separator 6 by the parallel composition of two row flaps 18, every row is provided with 15 blocks of flaps 18, the top of cyclone gas-liquid separator and bottom are all made as taper, and its conical surface and plane are 55 ° of angles, and the caliber of upcast 12, downtake 5 and effuser 7 is 200mm.
Embodiment 4:
The difference of the present embodiment and embodiment 1 is: the ellipse of spherical and major diameter 1.5 ~ 3.0mm that granule sludge 13 is diameter 0.5 ~ 2.0mm; One-level triphase separator 3 is with secondary triphase separator 6 by the parallel composition of two row flaps 18, and every row is provided with 20 blocks of flaps 18, and the caliber of upcast 12, downtake 5 and effuser 7 is 800 mm.
Embodiment 5:
The difference of the present embodiment and embodiment 1 is: the ellipse of spherical and major diameter 1.5 ~ 3.0mm that granule sludge 13 is diameter 0.5 ~ 2.0mm; One-level triphase separator 3 is with secondary triphase separator 6 by the parallel composition of two row flaps 18, and every row is provided with 3 blocks of flaps 18, and the caliber of upcast 12, downtake 5 and effuser 7 is 20mm.
application Example
The embodiment of the present invention 1 ~ 5 is applied in some papermaking enterprise of Guangxi and fish meal factory wastewater treatment.
(1) Guangxi sugar industry limited-liability company bagasse wastewater treatment: every day wastewater flow rate 7200m
3, anaerobism influent quality COD 8000 ~ 10000mg/l, water quality: COD≤300mg/l after the two cycle multistage anaerobic treatment of the present invention.
(2) Guangxi Paper Co., Ltd slurrying bagasse wastewater treatment: every day wastewater flow rate 3500 m
3/ d, anaerobism influent quality COD 8000 ~ 10000mg/l, water quality: COD≤200mg/l after the two cycle multistage anaerobic treatment of the present invention.
(3) Guangxi fish meal factory aquatic products wastewater treatment: every day wastewater flow rate 1000m
3/ d, anaerobism influent quality COD15000mg/l, water-quality COD≤400mg/l after the two cycle multistage anaerobic treatment of the present invention.
By actual argument, prove, the present invention is not only stable, and can reach good treatment effect.
Claims (4)
1. a two cycle multistage anaerobic reaction device, comprise two anaerobic reactors, described anaerobic reactor comprises container body (15), it is characterized in that: in described container body (15), be provided with successively water distributor (2) from bottom to top, the water inlet pipe (1) that leads to water distributor (2), one-level triphase separator (3), secondary triphase separator (6), rising pipe (11) and cyclone gas-liquid separator (10), cyclone gas-liquid separator (10) top is provided with and leads to outside methane outlet pipe (8), between water distributor (2) and one-level triphase separator (3), be provided with fluidized-bed reaction chamber (14), between one-level triphase separator (3) and secondary triphase separator (6), be provided with deep purifying reaction chamber (4), on described one-level triphase separator (3), cover and be provided with the upcast (12) communicating with cyclone gas-liquid separator (10), on described secondary triphase separator (6), cover and be provided with the effuser (7) that leads to cyclone gas-liquid separator (10), described container body (15) center is provided with the downtake (5) that spin current gas-liquid separator (10) leads to water distributor (2), and the granule sludge (13) that distributing also suspends in described container body (15), between described two anaerobic reactors, be provided with return line (9), coagulator (16) and pump (17), the rising pipe (11) of return line (9) water-in and one-level anaerobic reactor joins, return line (9) water outlet and coagulator (16) entrance join, coagulator (16) is provided with two outlets, one of them outlet is joined with the water inlet pipe (1) of secondary anaerobic reactor, and another outlet is joined by pump (17) and the water inlet pipe (1) of one-level anaerobic reactor, described water distributor (2) the cloth water surface is for revolving shape, top and the bottom of described cyclone gas-liquid separator (10) are all made as taper, and its conical surface and plane are 45 °～60 ° angles.
2. according to claim 1 pair of cycle multistage anaerobic reaction device, is characterized in that: described one-level triphase separator (3) is with secondary triphase separator (6) by the parallel composition of two row flaps (18), and every row is provided with 3～20 blocks of flaps (18).
3. according to claim 1 and 2 pair of cycle multistage anaerobic reaction device, is characterized in that: the caliber of described upcast (12), downtake (5) and effuser (7) is 20～800mm.
4. according to claim 3 pair of cycle multistage anaerobic reaction device, is characterized in that: the ellipse of spherical and/or major diameter 0.5～3.0mm that described granule sludge (13) is diameter 0.5～3.0mm.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103755022B (en) * | 2014-01-17 | 2015-07-01 | 广东金力环保科技有限公司 | Reducing IC (Internal Circulation) anaerobic reactor |
| CN105502648A (en) * | 2014-09-25 | 2016-04-20 | 扬州天朗水务设备有限公司 | Anaerobic reactor |
| CN108928916A (en) * | 2018-08-10 | 2018-12-04 | 苏州湛清环保科技有限公司 | The reactor of denitrification granular sludge |
| CN109987767A (en) * | 2019-04-22 | 2019-07-09 | 左可华 | A kind of split type sewage-treatment plant of medium heating purification |
| CN110305772A (en) * | 2019-08-07 | 2019-10-08 | 徐州国鼎盛和环境科技有限公司 | A kind of anaerobic reactor using aerobic sludge acclimatization anaerobic bacteria |
| CN113307364A (en) * | 2021-05-26 | 2021-08-27 | 玖龙纸业(天津)有限公司 | Double-circulation anaerobic reactor for paper machine system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102674545A (en) * | 2012-05-28 | 2012-09-19 | 苏州苏水环境工程有限公司 | Expanded granular sludge bed (EGSB) reactor with air-lift inner loop and micro power hydraulic outer loop |
| CN202880991U (en) * | 2012-10-19 | 2013-04-17 | 广西绿晨环境工程有限公司 | Double-circulation multi-stage anaerobic reaction device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102674545A (en) * | 2012-05-28 | 2012-09-19 | 苏州苏水环境工程有限公司 | Expanded granular sludge bed (EGSB) reactor with air-lift inner loop and micro power hydraulic outer loop |
| CN202880991U (en) * | 2012-10-19 | 2013-04-17 | 广西绿晨环境工程有限公司 | Double-circulation multi-stage anaerobic reaction device |
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